Bug#487673:

[Tim Richardson <tim@tim-richardson.net>]

I have lenny with python-apt 0.7.7.1

I seem to have this bug. 

this is the last few lines of terminal output when I run 
gksu
--desktop /usr/share/applications/software-properties.desktop /usr/bin/software-properties-gtk



"/var/lib/python-support/python2.5/softwareproperties/SoftwareProperties.py", line 450, in reload_sourceslist
    self.distro.get_sources(self.sourceslist)    
  File "/usr/lib/python2.5/site-packages/aptsources/distro.py", line 85,
in get_sources
    "Error: could not find a distribution template")
aptsources.distro.NoDistroTemplateException